code: def setUp(self):
      self.triplet_data = Reader().read("./tests/data.txt")
      self.uirt_data = Reader().read("./tests/data.txt", fmt="UIRT")
  
imports: import unittest
  import numpy
  import numpy.testing
  from cornac.data import BasketDataset, Dataset, SequentialDataset, Reader
label_desc: Use image node_id 1 for calling the TestDataset obj's underlying member method code with example usage: obj.setUp() without return types